Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1d7bb38280b8402…

MALICIOUS

PDF

69.9 KB Created: 2021-03-11 01:31:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: a2ad8151143faa388e7d7fc191f2de85 SHA-1: d52fb3dbd539fa4cc76301a2c7728bdc3060a106 SHA-256: f1d7bb38280b8402ea02a5dbfdfc31465aecb7826c8c7cc749c74e15355d52a1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://mezovuduw.ru/wix?keyword=photosynthesis+and+cellular+respiration+test+review+key PDF link annotation
    • https://cdn.sqhk.co/vezukefuza/hgtVieC/50258325871.pdfIn PDF document text
    • http://maxobujixeweden.sportsontheweb.net/sunumoxunekonus.pdfIn PDF document text
    • https://cdn.sqhk.co/pedidagow/Agemohi/dragon_king_s_daughter_new_albany_hours.pdfIn PDF document text
    • https://dojobojijiwum.weebly.com/uploads/1/3/2/6/132681334/menofobodikatuju.pdfIn PDF document text
    • https://menufepu.weebly.com/uploads/1/3/1/1/131163725/3bf11a.pdfIn PDF document text
    • http://jajokojunewi.mypressonline.com/california_dreaming_fingerstyle_tab.pdfIn PDF document text
    • https://lopodegif.weebly.com/uploads/1/3/2/6/132695694/wopudot.pdfIn PDF document text
    • http://wiwovurezibaso.getenjoyment.net/98640754495.pdfIn PDF document text
    • http://wigageturuv.mywebcommunity.org/mevojewinuwuxogu.pdfIn PDF document text
    • http://vevapefin.sportsontheweb.net/13727629983.pdfIn PDF document text
    • http://lofajemami.sportsontheweb.net/vutumapisaferibarureda.pdfIn PDF document text
    • http://bavimobuxadu.medianewsonline.com/what_can_make_your_blood_pressure_high_during_pregnancy.pdfIn PDF document text
    • https://rusizatigaj.weebly.com/uploads/1/3/4/0/134041601/1dc1af393c52f.pdfIn PDF document text
    • https://tunimesepet.weebly.com/uploads/1/3/1/4/131455680/a1bc61.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://forezepolutaju.onlinewebshop.net/nordyne_gas_furnace_control_board.pdfIn PDF document text
    • http://vuwejamadadodi.epizy.com/chitramala_songs_free.pdfIn PDF document text
    • http://roragopijejem.epizy.com/heap_income_guidelines_rochester_ny.pdfIn PDF document text
    • http://xasagode.myartsonline.com/47022004195.pdfIn PDF document text
    • http://femagela.myartsonline.com/23567036834.pdfIn PDF document text
    • http://rufirokexud.epizy.com/benidisolokelogotamire.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3CB 5480 bytes
SHA-256: 0a340169e00bfc3bdee5d2bd57d5f570e89b451d3a60a2ca63e24a4c63d35c10
font_01_sfnt_off0000e687.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE687 10256 bytes
SHA-256: 9517a1b405b1bb954e8a6a5596d420c1e379d83e40525d8aa341bdfe09968cb4